Mourners look on at the burial of Nayif Qarmout 15-year-old. As they arrive at the cemetery in Jabaliya. The circumstances surrounding his death remain shrouded. Israel disputes the Palestinian claim that Qarmout was killed by an Israeli airstrike. It is believed it may have been caused by a rocket being fired out of Gaza towards Israel falling short or the cause of death being some kind of explosive device he was carrying. Five other teenagers were injured in the incident. Jabaliya, Gaza. 12/03/2012